Answer:
You heard me before and then again. Afterward I die until you call me again.
I go around in circles, but always straight ahead, never complain, no matter where I am led.
What can be as big as an elephant but weighs nothing?
I go up, let out a load and then go back down. What am I?
I give people a huge fright but at the end I'm sweet. I normally celebrate at night when there's less heat.
I flow from the Homerβs mouth when he sees doughnuts.